This whole story pisses me off. If the parents are just installing apps without check the veracity of them and finding out its bad due to it scaring their children. BE LUCKY it was only a crappy horror prank.

To hear what else could actually place into these apps, listen to the audio. Trust me, an audio clip is the LEAST of your worries! (not to scare you, but clearly, you need to be if you installed this app for your child without checking it was legit!)